News

  1. Physics

    Tractor beams arrive two centuries early

    Trekkie devices that can pull instead of push have been developed by U.S. and Chinese physicists to move small objects.

    By Devin Powell
  2. Health & Medicine

    Digging into the roots of lupus

    Two new studies implicate common white blood cells called neutrophils in this autoimmune disease.

    By Nathan Seppa
  3. Humans

    Missing bits of DNA may define humans

    Genetic information lost along the way may have led to bigger brains and spineless penises, among other traits.

    By Tina Hesman Saey
  4. Life

    Anxiety switch makes mice shy no more

    Brain-control experiments could help shed light on psychiatric disorders

    By Laura Sanders
  5. Life

    Help, elephants need somebody

    In pull-together tests, pachyderms are on par with chimps in understanding the basics of cooperation.